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BigorU [14]
3 years ago
6

Simplify. 3x(2x + 4y)

Mathematics
1 answer:
Black_prince [1.1K]3 years ago
6 0
12xy+6x^2 is the expression 3x(2x+4y) simplified
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Which equation is equivalent to<br> log5x^3 - logx^2 = 2?
Oksanka [162]

Answer:

the second option and x=20

4 0
3 years ago
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Prove Forall x elementof Z, x^2 - 5x - 1 is odd.
Diano4ka-milaya [45]

Answer with Step-by-step explanation:

Let Z be a set of integers

We have to prove that x^2-5x-1 is odd for all value of x \inZ.

There are two cases

1.When x is an odd integer number

2.when x is even integer number

1.When x is an odd integer  number

When x is positive odd integer

Then x^2  is positive odd number (because square of odd positive number is always positive an odd number )

5x is also odd number

-5x -1 = -even number

Suppose x=3

Then -15-1=-16

Odd number - even number=Odd number

Hence ,x^2-5x-1 is an odd number .

When x is negative odd number

Then  x square is positive odd number  and 5x is negative odd term term

Therefore,odd number + odd number -1=Even  number -1=Odd number

Hence x^2-5x-1 is an odd number.

2.When  x is an even number

When x is positive even number

x square is positive even number  and 5x is positive even number

Even number -Even number -1 =Even number -odd number =Odd number

Suppose x=4

x^2-5x-1=16-20-1=-5=Odd number

When x is negative even number

Then x square is positive even number  and 5x is negative even number

x^2-5x-1=Even number +Even number -1=Even number -1=Odd number

Hence, for all elements of Zx^2-5x-1is odd.

7 0
3 years ago
Tim ran a quarter mile five times yesterday the table above shows the time of each run in minutes and seconds. For example the t
monitta
Honestly im not even sure lol
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3 years ago
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Please help !! what’s the answer? i don’t understand !!
dedylja [7]

Answer:

992

Step-by-step explanation:

You must convert the meter the kilometer by miltiplying by 1000

and when you do it you must multiply 0.992 by 1000 since it is a fraction .

or you can work it this way :

  • 0.992⇒1m
  • x(the new rate) ⇒1000m
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7 0
3 years ago
PLEASE HELP MEEEEEEEEEEEEEEEEE​
brilliants [131]

Answer:

A. .25

B. .95

C. .75

D. .42

Step-by-step explanation:

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2 years ago
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